I like chemistry. It's probably the field I would have gone into if I hadn't chosen electrical engineering.
It'd be kind of neat to have a collection of samples of every (safely storable) element.
I'm just thinking about chemistry and elemental nomenclature and stuff for some reason.
and now I just remembered that our high school chemistry textbook was interspersed with factoids about chemistry and famous chemists, all labelled "mole-cool"